Sweep absent any free debris that's gathered throughout the base. Eliminate leaves, twigs or something stuck within the grille slats with a store vacuum, utility vacuum or brush. Gravel: Jack up the concrete slab beneath your unit, and increase gravel underneath whichever element is sinking. Typical Expert maintenance visits https://airconditioningmaintenanc88877.blogofoto.com/62092438/5-simple-techniques-for-air-conditioning-maintenance